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Support procedure calls without arguments

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This commit is contained in:
Eugen Wissner
2024-03-26 23:04:20 +01:00
parent 30f80bcb88
commit 12869f0ec7
13 changed files with 317 additions and 113 deletions
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41
source/semantic.cpp
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@@ -3,6 +3,11 @@
namespace elna::source
{
name_analysis_visitor::name_analysis_visitor(std::shared_ptr<symbol_table> table)
: table(table)
{
}
void name_analysis_visitor::visit(constant_definition *definition)
{
this->table->enter(definition->identifier(),
@@ -15,12 +20,24 @@ namespace elna::source
std::make_shared<variable_info>(variable_info()));
}
void name_analysis_visitor::visit(block *block)
void name_analysis_visitor::visit(program *program)
{
this->table->enter("main", std::make_shared<procedure_info>(this->table));
empty_visitor::visit(program);
}
void name_analysis_visitor::visit(procedure_definition *procedure)
{
auto info = std::make_shared<procedure_info>(this->table);
this->table->enter(procedure->identifier(), info);
this->table = info->scope();
empty_visitor::visit(procedure);
this->table = info->scope()->scope();
}
allocator_visitor::allocator_visitor(std::shared_ptr<symbol_table> table)
: table(table)
{
this->table = block->table();
empty_visitor::visit(block);
this->table->enter("main",
std::make_shared<procedure_info>());
}
void allocator_visitor::visit(declaration *declaration)
@@ -28,11 +45,19 @@ namespace elna::source
this->offset -= sizeof(std::int32_t);
}
void allocator_visitor::visit(block *block)
void allocator_visitor::visit(program *program)
{
this->offset = 0;
empty_visitor::visit(block);
std::dynamic_pointer_cast<procedure_info>(block->table()->lookup("main"))
empty_visitor::visit(program);
std::dynamic_pointer_cast<procedure_info>(table->lookup("main"))
->stack_size(std::abs(this->offset));
}
void allocator_visitor::visit(procedure_definition *procedure)
{
this->offset = 0;
empty_visitor::visit(procedure);
std::dynamic_pointer_cast<procedure_info>(table->lookup(procedure->identifier()))
->stack_size(std::abs(this->offset));
}
}